"""Ачивки: админ создаёт/правит/удаляет, грузит иконку; condition хранится как текст."""
from __future__ import annotations

import json
from pathlib import Path

from fastapi.testclient import TestClient

from tests.conftest import csrf_headers

PNG = b"\x89PNG\r\n\x1a\n" + b"\x00" * 64


def _admin(client: TestClient, make_admin) -> None:
    make_admin("admin", "secret123")
    r = client.post(
        "/api/admin/auth/login",
        json={"username": "admin", "password": "secret123"},
        headers=csrf_headers(client),
    )
    assert r.status_code == 200, r.text


def _use_tmp_achievements(monkeypatch, tmp_path) -> Path:
    from app.core.config import settings

    monkeypatch.setattr(settings, "dev_achievements_dir", str(tmp_path))
    return tmp_path


def test_create_list_and_files(client: TestClient, make_admin, monkeypatch, tmp_path):
    root = _use_tmp_achievements(monkeypatch, tmp_path)
    _admin(client, make_admin)

    r = client.post(
        "/api/admin/achievements",
        json={"name": "Великий полководец", "description": "10 побед подряд"},
        headers=csrf_headers(client),
    )
    assert r.status_code == 200, r.text
    ach = r.json()
    slug = ach["slug"]
    assert slug and ach["name"] == "Великий полководец"

    # На диске создана папка с meta.json и condition.py (задел, не исполняется).
    folder = root / slug
    assert (folder / "meta.json").is_file()
    assert (folder / "condition.py").is_file()
    meta = json.loads((folder / "meta.json").read_text(encoding="utf-8"))
    assert meta["name"] == "Великий полководец"

    # Виден в админском списке (редактор использует именно его).
    assert any(a["slug"] == slug for a in client.get("/api/admin/achievements").json())


def test_duplicate_name_conflicts(client: TestClient, make_admin, monkeypatch, tmp_path):
    _use_tmp_achievements(monkeypatch, tmp_path)
    _admin(client, make_admin)
    body = {"name": "Берсерк"}
    assert client.post("/api/admin/achievements", json=body, headers=csrf_headers(client)).status_code == 200
    r = client.post("/api/admin/achievements", json=body, headers=csrf_headers(client))
    assert r.status_code == 409, r.text


def test_icon_upload_and_serve(client: TestClient, make_admin, monkeypatch, tmp_path):
    _use_tmp_achievements(monkeypatch, tmp_path)
    _admin(client, make_admin)
    slug = client.post(
        "/api/admin/achievements", json={"name": "Герой"}, headers=csrf_headers(client)
    ).json()["slug"]

    # Не картинка → 422.
    bad = client.put(
        f"/api/admin/achievements/{slug}/icon",
        files={"file": ("x.txt", b"nope", "text/plain")},
        headers=csrf_headers(client),
    )
    assert bad.status_code == 422, bad.text

    # Валидный PNG → icon_url, файл отдаётся.
    ok = client.put(
        f"/api/admin/achievements/{slug}/icon",
        files={"file": ("h.png", PNG, "image/png")},
        headers=csrf_headers(client),
    )
    assert ok.status_code == 200 and ok.json()["icon_url"], ok.text
    g = client.get(f"/api/achievements/{slug}/icon")
    assert g.status_code == 200 and g.content == PNG


def test_update_and_delete(client: TestClient, make_admin, monkeypatch, tmp_path):
    _use_tmp_achievements(monkeypatch, tmp_path)
    _admin(client, make_admin)
    slug = client.post(
        "/api/admin/achievements", json={"name": "Стратег"}, headers=csrf_headers(client)
    ).json()["slug"]

    # Правка описания и текста условия (condition хранится как текст).
    r = client.patch(
        f"/api/admin/achievements/{slug}",
        json={"description": "Победа по целям", "condition": "wins_by_objectives >= 5"},
        headers=csrf_headers(client),
    )
    assert r.status_code == 200, r.text
    assert r.json()["description"] == "Победа по целям"
    assert r.json()["has_condition"] is True
    assert "wins_by_objectives" in r.json()["condition"]

    # Удаление.
    assert client.delete(
        f"/api/admin/achievements/{slug}", headers=csrf_headers(client)
    ).status_code == 200
    assert all(a["slug"] != slug for a in client.get("/api/admin/achievements").json())


def test_delete_rejects_traversal_slug(client: TestClient, make_admin, monkeypatch, tmp_path):
    """Slug из URL не должен уводить файловые операции за каталог ачивок.

    Регрессия: `DELETE /api/admin/achievements/%2E%2E` снимал rmtree'ом родительскую
    папку каталога (в проде это /data — БД, uploads и ачивки разом)."""
    root = _use_tmp_achievements(monkeypatch, tmp_path / "achievements")
    root.mkdir(parents=True, exist_ok=True)
    sibling = tmp_path / "db.sqlite3"
    sibling.write_bytes(b"data")
    _admin(client, make_admin)

    r = client.delete("/api/admin/achievements/..", headers=csrf_headers(client))
    assert r.status_code == 404, r.text
    assert sibling.exists() and root.is_dir()